Deep well motor pump



Jan. 17, 139; M. HALLGARTH DEEP WELL MOTOR PUMP Filed Aug. 25, 1937 2 SheetsSheet 1 INVENTOR. fioRA (:5 M m;

GAEYH W7.

Jan. 17, 1939.

H. M. HALLGARTH DEEP WELL MOVTOR PUMP Filed Aug. 25, 1937 2 Sheets-Sheet 2 3 My m m Ma Z ma W Patented 17,1939

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Application August 25, 1937, Serial No. 160,811 2Claims.(Ol.103-46)' Fig. '7 is an enlarged detail. of the connection Y My invention relates to deep well motor pumps and has for its chief object a motor system comprising-a pair-of cylinders, each'having a piston '.and rod,the rods upwardly extending, the cylinders having an oil well with pump rodtherebetween, and means to connect, the upper ends of the piston rods to the pump rod, and a third cylinder horizontally disposed and having a piston and rod positioned therein and power means to actuate the piston reciprocatingly and a pipe connecting said cylinders, 'the pipe and cylinders between their respective pistons being filled-with oil or thelike, by which means displacement of the oil reciprocatingly by the piston of the last said cylinder will act upon the pair of cylinder pistons in like manner' as actuating means for i a the oil well pump, and the said horizontally posi-' tionedcylinder may be spaced a considerable distance from the well without impairing seriously the capacity of the motor. I

A further object of my invention is toprovide an auxiliary supply tank for the motor system, said tank being connected to the pipe line and adapted to ,supply fluid automatically as required, the tank having a check valve to close against compression in the motor system, said valve to open under vacuum strain to supply deficiency of fluid therein.

A still further object'of my invention is to provide a motorpump that will'work in connection with pump jacks commonly employed inoil. fields,'the hookup being such that the gravity pull of theppolish rod of one well will assist in raising the pump rod of another well and vice versa alternately.

These and other objects will hereinafter be. more fully explained, reference being had to'the accompanyingdrawings forming a part or this specification and in which like characters will apply to like'parts in the different view Referring to the drawings:-

Fig. 1 is a side view or the' motor, parts being same to move downward freely asthe oil moveremoved for convenience of illustration.

Fig.2 is a plan view of Fig. 1. Fig. 3 is a reduced side view of the reciprocating cylinder, showing its relative position to the crank shaft; and adjacent oil well and beam.

Fla. 6 is an enlarged sectional view of the yoke end oonnectiontakenon llne H in Fig. 5, looking in direction ofthe arrows.

bored to receive a stufling for'the' purpose later described. 1 Secured to .the outer end of said piston rod is a said pair of cylinders,

between the cylinder and cross-head guide. I

Fig. 8 is a side view ofan alternate method of operating the crank shaft through the medium of a worm gear arrangement, parts being removed for convenience of illustration.

Fig. 9 is anend view of-Fig. 'Lparts being re- -moved for convenience of illustration.

3 extending there-around and inward into the foundation that is preferably made of concrete.-

- The said cylinder-has a conical portion at one end thereof as at A, and to'which a pressure pipe 3' connects, the other end of saidcylinder has a head 4 secured fluid tight therein and axially piston rod 6 will slidablyengage. Secured to the end of said rod within the cyl-' box 5, through which a 4 inder is a piston I snugly engaging peripherally within said cylinder with a smooth running fit,

cross-head 8, that slidably engages in a track 9, said track being aligned with the cylinder longitudinally and in parallelism with the axisthereof and secured thereto by flanges l0 and ii respectively that arebolted together'y the said track-being made of' a pipe and having a plurality of openings l2. cut therethrough as means to gain.

access to the said rod connection and stufllngbox.

As heretofore stated pressure pipe 3', that is connected to the frustum end of the conical portion joined to cylinder I, is means to conduct fluid from cylinder I to'a pair ofcylinders 13, connecting with the same at the lower extremity thereof by laterals B respectively. Said laterals being securedto the endof said pressure pipe I are means to equalize the oil pressure in said pair 7 of cylinders,-and transmit power "intermittently to raise pistons l4, later described,and permit the meat is effected by the piston in cylinder I in its reciprocating movement. T

.tendingupward and outward through their respective cylinder heads 16-, functioning as guides for the rods in their reciprocating movementg all which nstituting a hoist fore. pump rod.

It will be understood that the pump'ro'd. n or an oll'well i1 is centrally positionedv between the li WW l 131.? bcingaecuredtoayoke llsubeta'ntiallyauhdwn it vice versa, alternately.

in Figs. 1 and.5, the said yoke being connected at its opposite ends to said piston rods ll. The said rods each have a lug ll adapted to seat in a pocket 20 positioned in each end of thevyoke, and secured therein by a pin 2| extending through the walls of the pocket and passing through an elongated slot 22 transversely-crossing the lug, by which means rocking movement of the yoke will not aflect vertical alignment of said rods in theln movement, such movement being due to unequal hoisting power of the cylinders.

It will also be understood that the pipe line 8' and cylinder i will be solidly filled with oil, ineluding the space below pistons i4, and being so filled the said pair of pistons I4 will be forced upward as piston I is moved toward the conical end of its respective cylinder I, the movement being through the medium of a'crank 23 formed in ashaft" that is power actuated. The said crank and cross head I are joined by a connecting rod '28, one end of which is hingedly connected to the weaw I cross head 8 while the other end is pivotally secured to .the crank, as shown in Figs. 1 and 2. The said shaft has a second crank 26 positioned at 90 degrees from the first said crank.

-'Ihe last said crank' 28 is connected. to one end'of a walking beam 2110f a pump Jack, bya connecting rod 28, as rocking-means for said beam that is centrally pivoted on a standard 29, while the other end of said beam carries a pump rod 3. of another all well functioning as a hoist of the pump rod and by which means the gravity pull of one pump rod will function as ,a counterbalance to assist in raising the other, rod and As a means to supply shortage of fluid in the pipeline'and cylinders above described, I have arranged and vertically positioned anmauidliary tank" on said pressure pipe I, preferably in proximity to cylinder, I as shown inl 'igs. 1 and 3,the function of which is as follows:

The said tank is filled with oil which is retained-the'rein by a spring tensioned valve 32 posi in the 'bottom thereof, the said valve pressure while the motor is in ac- -tion and solidly-filled with oil, but should the deprived of zits oil ror a y reason; sucideficiencywill be supplied as the vacuum will open said'valve 30, causing an inflow of oil fr the automatically sumcient to fillthemotorsystem. V 1

auxiliary tank has a glassgauge 31 on theside thereof to determine the quantity. of oil containedtherein. There is also on thejcap of-said tank, a U shaped" It to avoid a vacuum as the I r ns placed a plurality ,of apertur'es is" in frodsjll, adjacent their respective. pistons and a U vent-38 ineach head of said rods, by i vacuum and-compression is abated urin'g reciprocation of the pistons.

' In Figs, 8 and 9 is shown a means to turn the II in mesh with a worm gear 38', said worm and gear within ahousing it, that is separably arrangedand secured together by screws to en- 'gagin'g through-e'ars M respectively, the said housing ii'uid tight and mounted on a base that to a foundation 43 through thefinedi 'of'boitsfli 'Ih'esai'd worm-gear has a secured therein, said shaft being in bearings 4! that are likewise said crank shaft, said means comprisinga worm anchored to the upper extending legs c of said foundation, and the said shaft having secured to each outer end thereof the cranks 28 and 2., the said cranks being positioned at right angle to each other and having connected thereto the said connecting rods 2! and it. i

It is understood that the said worm is mounted on shaft I! that extends to a power actuating means therefor, said meansnot shown in-the drawings, and that suchother modifications may be employed as lie within the scope of the appended claims.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent iszl5 1. In a deep well motor pump, the combinatiom of a pairof head hoisting cylinders, for one of a pair ofoil wells, each of which has a pump rod. each cylinder having a piston and a-hollow aper tured rod to avoid compression in the upper stroke ofthe pistons and means to connect the rods to oneof said pump rods, ofa compression c; linder and. pressure pipe line for the hoists, said cylinder and pressure line being filled with oil, of a piston positioned in the end of the compression cylinder opposite its pipe connection, said piston having a rod, and power actuating means therefor to move the piston to the other end of the said compression cylinder and cause return of the same which in turn eifects the'movement of each hoist piston simultaneously to actuate the pump'rod, .of an auxiliary tank having a check valve adjacent the pressure line as automatic means to supply oil to the pressure. li'ne and compression cylinder. as the oil exhausts therefrom, of a piston rod and-guiding means therefor, of a shaft having two cranks rotatable therewith and mechanical power to turn the shaft, means to connect one of the cranks to the piston rod as actuating means therefor, and means to connect the other crank 10 the other pump rod for the purpose specified:

2. In deep well motor pumps, in combination with'the pump rods of two wells, one pump rod beingoperated by a hydraulic Jack and the-other by the conventional walking beam, the hydraulic jack. of its respective well comprisingthe com bination of a pair 'of head hoisting cylinders,

each ofwhich has a piston and a hollow .apertuned rod to avoid compression in the upper stroke of the pistons and means to connect the rods to its respective pump rod, of .a compression cylinderv and. pressure pipeline for the hoists,

said cylinder and pressureline being filled with oil, of a piston positioned in the end ofthe compression cylinder opposite its pipe (:onnsfition, 5

said piston having-a rod, and power actuating means therefor to move the pistonto the other end of the said compression cylinder and cause return of the same which in turn effects the. movement of each hoist piston simultaneously to actuate the pump rod, of an auxiliary-tank having acheck valve Mil i-Gent thepressure line .asautomatic means to supply, oil to the pressure line-andcompression cylinder as the oil'exhausts therefrom, of a piston rod and guiding means therefor, of a shaft-having two cranks rotatable therewith; and mechanical power, to turn the shaft, means to'connect one of the cranks to the-piston rod as actuating means therefor.and means to connect the other cranktothewalking beam of the other well for the purpose specified.

HORACE .M. HALLGARTH. 

